An Improvement of Southwell's Method for Determining Buckling Loads.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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If an elastic bar with some initial imperfection is subjected to increasing compressive axial load, the lateral deflection, measured anywhere along its length, increases monotonically the primary buckling mode becoming more and more dominant in the deflected shape. A classical approximate technique, due to R. V. Southwell, correlates axial load and lateral deflection for determination of the primary buckling load of the bar. However, Southwells approximation may be inaaccurate if the primary mode does not predominate in the deflected shape. The present thesis proposes a technique which employs axial loading, but also transverse loading to insure dominance of the primary mode in the deflected shape. Author
- Structural Engineering and Building Technology